It was the years 1973, 1974,...In the article on "CONCATISO my first program" I described in broad strokes the characteristics of the computer CID-201-B compatible with the PDP-8 of the DEC company.Recall that it was 12 bits long, but also only had a 12-bit accumulator register and 1 carry bit.Machine language instructions were encoded in those 12 bits where sometimes another word was used to access groups of 4096 (12 bits) memory words, and thus be able to access all 32 Kilowords...

It was the 70's and I continued working as a programmer for the Neuroscience Department using the laboratory computer, which in other articles I have explained that it only had 32 Kilo Words of 12 bits each, a typewriter that could punch 8-bit paper tapes. channels (bits), and an 8-channel paper tape reader.I have also commented that I programmed coding "by hand", and as soon as it was available in the machine language assembler, and also in the LEAL language, which was "postfix".T...

At the beginning of the 70s we had a computer with 32 Kilowords and 12 bits in length each word and to program it encoded the machine language by hand and could also use a posfix notation language called LEAL although it was difficult for us anyway to translate algorithms especially if what prevailed was the calculation, so frequent in the Neuroscience applications that we developed supported by statistics, including multivariate ones.In those years and also in the 60's, it was com...

One afternoon of the many in which the programs we developed took hours and even days to produce results, several colleagues were meeting near our computer and the topic of robots came up.Some of us talked about the distance between the human being and the automation of processes by computers, which by the way is currently maintained, others about the development of Neuroscience itself, others the development of mathematics and computing itself, in short, almost any topic fit into...

Under Rocinante's helmets I made the happiest quixot of my life.It was the 80s of the last century, and my friend Peter and I, being at a scientific event at the University, we read on a flyer that in "El Bodegón de Bartolo", a nearby coffee bar, from 10 AM it could be consumed with beer At an open bar and we couldn't hold out, we went out there with Peter's girlfriend, Yanai.When we get to the bar they inform us that no, that there is nothing at all until 5 pm, and then Yanai tell...

Do you really think that programmers do our job "so badly" and make "so many mistakes" that we cause the thousands of vulnerabilities that the Windows operating system has had, has, and will have?As a fact, I affirm that all "legal" antiviruses ask Microsoft for various "entry and interception points" where to put their "legally added" programming to the operating system. For example, how do you think an antivirus "checks" every file before being "opened" by Windows Explorer? Becau...

  Amazon puts in your hands the book: Classic motors in Cuba 1899-2007 (Spanish Edition). Launching by Hobbiesenred of the Book: "Classic Motors in Cuba".Dedicated: To the motorcyclists of Latin America, the world and especially to the Cubans.The legend of classic motors in Cuba began on September 3, 1899. Motorcycles continued to penetrate and, from that moment on, riders began to leave their footprints all over the island, thus maintaining their permanence, hegemony and development. This bo...

It is known to all that the use of Spreadsheets, such as the current Excel, since the beginning when VisiCalc appeared in 1979, have allowed many users without programming knowledge to be able to develop many and varied applications.In particular, the world of economics has been empowered by Spreadsheets. An accountant can directly carry out all or almost all of his work using them, since from the beginning they were conceived with a varied communication with other data processing...

One of the most fantastic things about having a computer in our department in the 70's is that we could do with it what we wanted, literally, without having to go through all the bureaucracy created around the so-called "Calculation Centers", where weeks and even months passed between having an idea and getting a real program to implement it. In other words, we lived through the personal computer revolution years before it even existed.In those years a young researcher, the current...

Any two-dimensional screen can be viewed as a collection of rectangular cells. A point and even the entire screen can be defined as such.Almost all cell phones and computer screens are two-dimensional screens.Therefore, anything that runs on mobile phones or PCs or Macs is viewed on a two-dimensional screen as a collection of rectangular cells.In conclusion, anything that runs on mobile phones or PC or Mac can be conceived as a spreadsheet both practically and theoretically.Spreads...

It was the 70's and then we only had a 12-bit 32 Kilo Words computer, as I have commented, but the problems that we had to solve, especially statistical ones, needed many more resources.So I took on the task of "circumventing the bureaucracy" of the Computing Centers with their way of working: "submit the program and data on paper" and after days or weeks: "come and collect your results" or "the program did not compile" or "the program failed", which made us fix the problems on pap...

You have to apply a security patch or do it by hand according to the news: https://news.sophos.com/en-us/2020/10/13/top-reason-to-apply-october-2020s-microsoft-patches-ping-of-death-redux/ On the Microsoft site according to: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16898 When you are going to download given the version of windows you have, a download of more than 1 GigaByte appears !!. Then on that same page it appears how it can be "resolved" by hand, whi...

I have said on many occasions and in various audiences that what we call variables in Programming is what frontally separates Mathematics and its language from Programming and the problems it solves.It is that it is well known that a mathematical variable is like a being without a name, which can be called X, Y, or Z interchangeably and the meaning of the mathematical formulas where it appears does not change. Also the mathematical variable is like a being without its own personali...

My current works and ideas.Over the years I have been developing a series of works and research proposals that I would like to present to you as a whole for your consideration. For each one you will find here an introduction to the topic and also links to the complete content already more elaborated. Most of the topics are under development and from time to time I add or modify information. Keep this in mind so that from time to time you can revisit the topics that were of interest...

Back in the year 1973-74 I have already told how Dr. Pedro Valdés took me to know the work of the Department of Neurosciences.I immediately met Dr. Thalía Harmony, one of the most intelligent and determined people I have ever met in my entire life, and knowing that I was about to finish the second year of Pure Mathematics, She knew that I had no biological training.I will never forget that he looked at me with those "inquisitive eyes" that he has and told me: "To work here you must...

The articles presented in this space are the authorship of Onelio García Pérez and his friends, © www.HobbiesEnRed.com, based on empirical research, there have been few investigated periods as a result of addressing issues that go beyond the particular objectives of the Author. The historical approach present in the fascicles is the product of the limited bi...

Since my arrival at the Department of Neurosciences I noticed that the branch of Neuro Biochemistry was, as I say, very well represented by the brilliant Swedish researcher Björn Holmgren and his wife, the talented Chilean Ruth Urbá.In almost home-like conditions, since in fact we were working in what was known at the time as "The Laboratory House", they carried out intense research using mice as an experimental basis, and their contributions to the study of sleep and its physiolog...

It was the early 70s of the last century, and in our PDP-8 compatible minicomputer from Digital Equipment Corporation (DEC) there was almost no way to program except by hand-coding machine language. Later, the Central Institute for Digital Research (ICID) developed the assembler and later the LEAL language (LEnguaje ALgoritmico) that I have referred to in other articles and in which it was quite difficult and tedious to program as it was postfix notation, especially when evaluating...